<style>
	html,body{
				margin: 0;
				padding: 0;
	}
	img{
		width: 980px;
		height: 500px;
	}

	img{
		width: 200px;
		height: 100px;
		
	}
	  *{
		     	margin: 0;
		     }
			.bg{
				width: 600px;
				height: 300px;
				background:gainsboro;
			    
			}
			.zuo{
				width: 350px;
				height: 250px;
				background:whitesmoke;
				float: left;
				margin-top: 25px;
			}
			li{ 
				list-style: none;
				margin-left: -20px;
				line-height: 45px;
				font-weight: bold;
			}
			li span{
				color: blue;
			}
			
			.you{
				width: 200px;
				height: 250px;
				background:green;
				float: left;
				margin-top: 25px;
				margin-left: 20px;
			}


       </style>
